Explosive-engine.



s. YBARRA. EXPLOSIVE ENGINE. A .APPLICATION FILED I'EB.27, 1911.

Patented Jan. 16,1912.

2 SHEETS-SHBET 2.

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'V sauver nanna, or se. Louis, Missouan ExrLosIvE-ENGINE.

To all wiz-om t may concern# Be it known that I, SAMUEL YBABRA, a citizen of the United States of America, residing in the city of St. Louis and State of issouri, have invented certain new and useful Improvements in Explosive-Engines,- of which the following is a full, clear, and exact descript-ion, reference being had to the accompanying drawings, forming part of this specication. f Y

y invention relates to an explosive engine and has for one of its objects the production of a very simple explosive engine having a minimum number of parts.

The ordinary` spring actuated valves fit-ted to and cam actuated devices for valves. Valves of this type beveled seats to which they must be accurately fitted, thereby destroying the accuracy of the valve seats; and Iowing to the fact that these valves are only actuated intermittently, objectionable stresses occur when the valve gear issuddenly brought into service by the cams. Furthermore, valves of this type arenoisy and difficult to maintain in proper working condition. All of y these objectionable features are eliminated in my improved engine.

In the preferred form of my invention, the engine is provided with suitable inlet and exhaust ports and a rotatable valve adapted to open and close both of said ports. This valve preferably rotates continuously during the operation of the engine, thus eliminating all of the noise, hammer blows andstresses which would occur if the valve were operated intermittently.

igure I is a side elevation, partly insection, of a four cycle engine embodying the features of my invention. zontal section on line II-II, Fig. I, .looking in the direction indicated by the arrow crossing said line. Fig. III is a horizontal section on line III-III, vF-ig. I, looking in the direction indicated by the arrow crossing said line. Fig. IV is a horizontal section on line IVIV, Fig. I, lookin in the direction indicated by the arrow rossing said line. l Y

In the accompanying drawings: A. designates a cylinder, case B and within which is a piston C. A. crank shaft D is'connected to the piston in the usual `manner by a piston rod E.

A disk valve'l, rotatably fitted to the inbeveled seats moving said Specification of Letters latent. Application' tiled February 27, 15911.

explo-sive engine includes i hammer the l Fig. II is a horiextending from a crank."-

Patented J an. 16,1912. seria; no. 611,185.

ner face4 of the cylinder \head 2, is to Q en nd `close inlet and exhaust ports whic wi l be hereinafter more particularly mentioned. The valve may be rotated through the medium of miter wheels 3, one ofwic is Connected the other being xed to 5, secured' to the shaft 4, meshes with a gear vvn el 6 secured to a shaft 7, the latter passin'g'through the cylinder head 2 and bein fixed to the rotatable valve l. The shaft preferably projects through-a cover plate 8 adapted The rotatable valve 1, which lies'on the inner face of the cylinder head is provided 'h a single port 11 adapted to register with either of the ports 9 'and 10 to admit an explosive agent into the cylinder at the proper time, and thereafter allow the products of combustion to be expelled from the cylinder. As herein shown, the valve 1 is geared to the crank shaft so as to make one complete revolution during four strokes of having only one-half as many teeth as the gear wheel 6.

he operation of the four cycle engine herein shown 1s as follows: tion` stroke of the piston C the opening 1l let port 9 and of its suction stroke, the inlet port 9 is closed by the valve 1 and both ports remain closed during the next two piston strokes, or while the charge is compressed and ignited. The next succeeding stroke of the in valve 1 registers with the exhaust port 10. This stroke completes the cycle of operations a continued movement of the piston will cause -the opening 11 in the rotatable valve to againl register with the inlet port 9, as seen in Fig. IV The cylinder head is preferably cored to provide a water jacket, and water may be supplied to and discharged from said water jacket through the to the crank sha ft D, l

piston is utilized to discharge ,with ducts 14 and 15, which form a passagevalve rotatably fitted to the inner face of said head and adapted to open and close one of said ports, and a shaft fixed to said valve, a duct being formed in said shaft and valve,

medium of pipes 12 and 13. For the giurpose of supplying oil to the top face o the rotating valve 1, (Fig. 1)', sald valve and the shaft to which it is fixed are 'provided the cylinder head having a passageway` adapted to register with sai duct, said dnct and passageway providin through which oil may be con y the exterior of said cylinder head to the top 25 face of the rotatable valve. i SAMUEL YBARRA.

In the presence o R. J. MGCAULEY,

E. B.v LINN.

way leading from the upper portion of said shaft to the top face of the valve. The -cylinder head is also provided with a assageway 16 which communicates with t e duct. in shaft 7 during each revolution of said shaft. 17 is anA oil supply pipe leading to the passageway 16.

An explosive engine com risinga cylinder having a head provide with ports, a

said duct leading to the top face of the valve, 20 y 

